You woke beneath black reeds and a dead sky. You remember no name.

TUONELA: THE SUNLESS MIRE is a horror idle game set in the Finnish underworld — a lightless bog at the edge of the River Tuoni, where the dead drift and something older watches from the water.

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 SURVIVE

Warmth decays. Always. Dig peat from the mire, burn it to stay alive, and decide how much cold you can afford.

 DREDGE THE RIVER

Every step into the River Tuoni costs warmth. The needle-fish won't come to you. Decide what you're willing to spend.

 BIND THE ÄPÄRÄ

Channel Väki — the animating force of the bog — to bind Äpärä: the restless dead. They will fish while you sleep. They will watch when you don't.

 DREAM AT YOUR OWN RISK

Close your eyes and the mire gives you things. Peat beneath your fingernails. Fish you didn't catch. Curses that stay.

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Built on Finnish folk mythology: Tuonela (the realm of the dead), Väki (spiritual force), and the Äpärä (illegitimate spirits who were never properly mourned).

Something is watching.

It has been since before you woke.

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Controls: Mouse only. Browser-based, no install.

Length: 15–30 minutes per run.

Game is open source. https://github.com/Shade-raid/tuonela/tree/main